102101120001 has 8 divisors (see below), whose sum is σ = 151260918560. Its totient is φ = 68067413316.

The previous prime is 102101119997. The next prime is 102101120003. The reversal of 102101120001 is 100021101201.

It is a happy number.

It is not a de Polignac number, because 102101120001 - 2² = 102101119997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102101120003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890761455 + ... + 1890761508.

It is an arithmetic number, because the mean of its divisors is an integer number (18907614820).

Almost surely, 2^102101120001 is an apocalyptic number.

It is an amenable number.

102101120001 is a deficient number, since it is larger than the sum of its proper divisors (49159798559).

102101120001 is an equidigital number, since it uses as much as digits as its factorization.

102101120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781522972 (or 3781522966 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102101120001 its reverse (100021101201), we get a palindrome (202122221202).

The spelling of 102101120001 in words is "one hundred two billion, one hundred one million, one hundred twenty thousand, one".